Optimization on ultrasound imaging gathered by an array transducer with element failure

The array transducer is a key unit to the phased ultrasound imaging systems. While, size error or element failure of elements are often occurred on the array transducer. Those situations could make serious negative effects on the acoustic field distribution of an array and impact on the quality of ultrasound imaging. In this context, we propose a method to revise those effects of the element failure of an array transducer by the method of adjusting the excitation parameters of elements. The theoretical analysis and experiments results indicate that this method is effective and feasible on optimizing ultrasound image gathered by an array transducer with some failed elements.